6. large carrying capacity: due to the low resistivity, the same cross section of the copper core cable to allow carrying capacity is higher 30% than the aluminum core cable (able to pass through the maximum current).

7. low voltage loss: because of the low resistivity of the copper core cable, as the same section of the flow through the same current situation, voltage of copper core cable is small. Therefore, the same transmission distance, can guarantee the high voltage quality; or in the allowable voltage drop condition, the copper core cable transmission can reach further distance, that is, power supply covers large area, is conducive to the network planning, reduce the number of power points.

8. heating temperature is low: in the same current, the same cross section of the copper core cable heating capacity is much smaller than the aluminum core cable, making the operation more safe.

9. low energy consumption: due to the low resistivity of copper, compared to the aluminum cable, the power loss of copper cable is low, which is obvious. This is conducive to improve the utilization of power generation and protection of the environment.

10. oxidation resistance, corrosion resistance: copper core cable connection head performance is stable, not due to oxidation and accident. The joint of the aluminum core cable is often due to the oxidation of the contact resistance increases, fever and accident. Therefore, the accident rate is much greater than the copper core cable.

11. It is convenient for construction: (1)copper core flexible, allow the curvature radius is small, so easy to bend, wear tube is easy; (2) copper core anti fatigue, repeated bending is not easy to break, so that the wiring is simple; (3) the mechanical strength of the copper core is high, withstand high mechanical tension, bring great convenience for laying construction, for mechanical construction create the conditions.